Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) YAMASHITA Toshiyuki,A study for pleasantness in a computer game by analytic hierarchy process.,The Japanese Journal of Ergonomics,0549-4974,Japan Human Factors and Ergonomics Society,1999,35,2,79-86,https://cir.nii.ac.jp/crid/1390282679508714880,https://doi.org/10.5100/jje.35.79